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Finding the Fourth Proportional to 99,622.65, 149,352.54 and 46,347.81

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Solution

The fourth proportional to 99,622.65, 149,352.54 and 46,347.81 is: 69,483.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,622.65 : 149,352.54 = 46,347.81 : x
  2. Step 2: Convert to fraction form
    99,622.65/149,352.54 = 46,347.81/x
  3. Step 3: Cross multiply
    99,622.65x = 149,352.54 × 46,347.81
  4. Step 4: Simplify right side
    99,622.65x = 6,922,163,146.94
  5. Step 5: Solve for x
    x = 6,922,163,146.94/99,622.65
  6. Step 6: Final answer
    x = 69,483.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.